Why Choose the ABB A44 113-100 Energy Meter?
The ABB A44 113-100 is an advanced three-phase CT/VT-connected electricity meter designed for accurate active energy measurement in industrial, commercial and building-services installations. As part of the ABB A44 energy meter series, it is intended for indirect measurement of three-phase networks where external current and, where required, voltage transformers are used.
The A44 113-100 supports both 3-wire and 4-wire three-phase systems and provides configurable transformer ratios for current and voltage. It measures active energy to Class B (Class 1) accuracy and accepts measurement current up to 6 A, making it suitable for transformer-connected metering of higher-current electrical distribution systems.
Integrated M-Bus communication enables remote meter reading and connection to compatible building and energy-management systems. The meter also provides a configurable output for active-energy pulses or alarm signalling, up to 25 configurable alarm conditions, an infrared interface and a large backlit display showing energy and key electrical instrumentation values.
Key Advantages
- Advanced three-phase CT/VT-connected energy meter for indirect measurement.
- Suitable for 3-wire and 4-wire three-phase networks.
- Class B (Class 1) active energy accuracy for dependable energy monitoring.
- Measurement current up to 6 A for transformer-connected applications.
- Wide 3 × 57.7/100–288/500 V AC measurement voltage range.
- Integrated M-Bus communication for remote meter reading and energy-management integration.
- Configurable transformer ratios support a wide range of CT/VT installations.
- Configurable output provides active-energy pulse or alarm functionality.
- Up to 25 configurable alarm conditions support detailed electrical monitoring.
- IEC approved and MID approved and verified for professional metering applications.
Key Features
- ABB A44 energy meter series.
- Three-phase transformer-connected electricity meter.
- CT/VT connection with configurable current and voltage transformer ratios.
- Maximum measurement current: 6 A.
- 3 × 57.7/100–288/500 V AC voltage range.
- 50–60 Hz operating frequency.
- Class B (Class 1) active energy accuracy.
- Active energy measurement.
- Instrumentation values for power, current, voltage, frequency and power factor.
- Per-phase and total electrical measurements.
- Integrated M-Bus communication.
- Infrared communication interface.
- One configurable output for active-energy pulses or alarms.
- Up to 25 configurable alarm conditions with threshold monitoring.
- Backlit digital display with up to seven digits.
- Event logging functionality.
- Compact seven-module DIN-rail construction.
Reliable Transformer-Connected Energy Monitoring
Transformer-connected energy meters such as the ABB A44 113-100 allow higher-current three-phase electrical systems to be monitored without routing the full load current through the meter. External current transformers provide a reduced measurement signal, while configurable current and voltage transformer ratios enable the meter to calculate energy consumption for the primary electrical circuit.
Beyond accumulated active energy, the A44 113-100 provides instrumentation values including power, current, line-to-line and line-to-neutral voltage, frequency and power factor, both per phase and as total values. M-Bus communication, configurable alarms and pulse functionality allow this information to be incorporated into wider building-management, energy-management and industrial monitoring systems.
Typical Applications
- Industrial three-phase energy monitoring.
- Commercial building electricity metering.
- CT/VT-connected electrical sub-metering.
- Higher-current distribution boards and switchgear.
- Building management systems using M-Bus communication.
- Factory and production-facility energy monitoring.
- Tenant and departmental electricity consumption monitoring.
- Electrical instrumentation and alarm monitoring.
- Energy efficiency and consumption analysis.
- Three-phase 3-wire and 4-wire distribution systems.
